JL Audio JX400/4D 4-Channel Class D Full-Range Amplifier

  • 4-channel car amplifier
  • 70 watts RMS x 4 at 4 ohms (100 watts RMS x 4 at 2 ohms)
  • 200 watts RMS x 2 at 4 ohms
  • Class D amplifier design
  • Frequency response: 20-20K Hz
  • Variable high- and low-pass filter (50-200 Hz, 12 dB/octave)
  • Preamp inputs and outputs
  • Speaker-level inputs
  • 4-gauge power and ground leads and a 40-amp fuse recommended — wiring and hardware not included with amplifier
  • No onboard fuses — when installing multiple amps in a system, an additional 40-amp in-line fuse between the distribution block and the amplifier is recommended
  • 9"W x 2-3/16"H x 7-11/16"D
  • Warranty: 2 years

  • $349.00 $399.00

    The JX400/4D employs a highly-efficient Class D design with a robust MOSFET power supply to deliver a strong 100 watts to each of its four channels into 2 ohms (14.4V, 1% THD).

    Use the JX400/4D in combination with our JX500/1D or JX1000/1D monoblocks to build an amazing amplification system at a very affordable price. Or, use the JX400/4D by itself to power two satellites, plus a subwoofer.

    The JX400/4D includes a defeatable 12 dB / octave filter for each channel bank, which can be configured as a low-pass or high-pass filter and offers continuously variable cutoff frequency selection from 50-200 Hz. Dedicated hi-level inputs are included, in addition to conventional low-level RCA inputs, making it easy to integrate with a variety of OEM and aftermarket head units.

     

    Rated Continuous (RMS) Power @ 14.4 V

    @ 4 Ω 70 W RMS x 4
    @ 2 Ω 100 W RMS x 4
    Bridged @ 4Ω 200 W RMS x 2

    Rated Continuous (RMS) Power @ 12.5 V

    @ 4 Ω 50 W RMS x 4
    @ 2 Ω 80 W RMS x 4
    Bridged @ 4Ω 160 W RMS x 2

     

    General Specifications

    Frequency Response 20 Hz - 20 kHz (+0, -1dB)
    S/N Ratio, referred to highest rated power >93 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
    S/N Ratio, referred to 1 W >76 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
    Damping Factor @ 4 Ω >60 / 50 Hz
    Damping Factor @ 2 Ω >30 / 50 Hz
    THD+N @ Rated Power <1% @ 2 Ω per Ch.
    Input Voltage Range @ RCA Inputs 200 mV - 4 V RMS 
    Input Voltage Range @ High-Level Inputs 2 V - 10 V RMS
    Min.Copper Power / Ground Wire Gauge 4 AWG wire
    Fuse Rating 40 A (AFS, AGU or MaxiFuse™) 

     

    Signal Processing

    Filter Mode(s) Low-Pass or High-Pass
    Filter Slope(s) 12 dB/octave
    Filter Frequency Range 50 Hz - 200 Hz
    Detented, Calibrated Filter Freq. Potentiometers No
    Filter Defeat Function Yes
    Remote Level Control No
    Remote Level Modes N/A
    Channel Input Mode Switch Yes (2/4 ch.)
    Pass-Through Preamp Output Unbuffered
    Source Channel Selection for PreOuts No (always 2 Ch)